{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX10B-144P-SV1(91)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"FX10B-144P-SV1~191~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10B-144P-SV1~191~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/FX10B-144P-SV1(91)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FunctionMax™ FX10 header, outer shroud contacts, 144 positions, 0.020\" (0.50mm) pitch, dual-row, surface mount, gold-plated contacts, 5mm mated stack height, solder retention.","salesMarkdown":"## Board-to-Board Mezzanine Header for Dense Parallel Stacking The Hirose FX10B-144P-SV1(91) is a 144-position header from the FunctionMax™ FX10 series, designed as a board-to-board mezzanine interconnect. The connector is specified for a 5mm mated stacking height, which sets the board-to-board spacing in the final assembly. ## 144 vs 168 Positions — Choosing the Right Circuit Count The FX10B-144P-SV1(91) shares the same 0.020\" (0.50mm) pitch, 5mm mated stack height, and gold-plated contacts as the 168-position FX10A-168P-SV1(91). The difference is 144 circuits against 168 — a 24-position gap that matches the BOM line count. If your design calls for 144 signal paths, this header fits without wasting board area on unused positions; the 168-position version adds an extra row of 24 contacts that must be routed or left floating.","metaTitle":"Hirose FX10B-144P-SV1(91) FunctionMax™ FX10, 144 Pos","metaDescription":"Hirose FX10B-144P-SV1(91) header, 144 positions, 0.020\" (0.50mm) pitch, 5mm mated stack height. Gold-plated contacts, SMT with solder retention.","metaKeywords":null},"attributes":{"series":"FunctionMax™ FX10","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.020\\\" (0.50mm)","Series":"FunctionMax™ FX10","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Header, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.177\\\" (4.50mm)","Base Product Number":"FX10","Number of Positions":"144","Mated Stacking Heights":"5mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.9100","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.91000","currency":"USD"},{"qty":10,"price":"$5.36500","currency":"USD"},{"qty":25,"price":"$5.08120","currency":"USD"},{"qty":50,"price":"$4.96320","currency":"USD"},{"qty":100,"price":"$4.72680","currency":"USD"},{"qty":250,"price":"$4.13596","currency":"USD"},{"qty":500,"price":"$4.01778","currency":"USD"},{"qty":1000,"price":"$3.42693","currency":"USD"},{"qty":2000,"price":"$3.30876","currency":"USD"},{"qty":3000,"price":"$3.19059","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/dd341c0f6d8db12322424d9acdd6dcc2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mated stacking height of the FX10B-144P-SV1(91)?","answer":"The mated stacking height is 5mm, which sets the board-to-board spacing when mated with the matching FX10 receptacle."},{"question":"Is the FX10B-144P-SV1(91) RoHS compliant?","answer":"Yes, the FX10B-144P-SV1(91) is RoHS Compliant per the listing."},{"question":"What is the pitch of the FX10B-144P-SV1(91)?","answer":"The pitch is 0.020\" (0.50mm), which is the center-to-center spacing between adjacent contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10B-144P-SV1~191~2","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/hirose-electric-co-ltd/FX10B-144P-SV1~191~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}